Which one of the following rivers is not a tributary of river Cauvery?
Kabini, Hemavati, Amravati, Suvarnavati, Bahvani, and Arkavati are the tributaries of Cauvery river.
The Indravati river is a tributary of the Godavari river, located in central India. The river rises in the Eastern Ghats in Odisha and flows westwards to join the Godavari. There is a famous wildlife sanctuary named Indravati National Park on its bank.
The correct option is C.